The contestants aren’t allowed to specifically say what numbers they’ll do, but Martin hinted that, if he does get to sing, one song will be a cover he previously performed and the other will be “something nostalgic.”
“There will be no original songs for this round,” he says. “I try to make smart song choices. I know what people want to hear and what they don’t want to hear.”
It has been known that the Top 5 will sing a repeat performance from this season (reprise). I think their 2nd songs will be from the year they were born since the Idol social media have posted their baby pictures.